Division sheet for visible record binders



Feb. 16, 1932. H. c. MILLER DIVISION SHEET FOR VISIBLE RECORD BINDERS 2 Sheets-Sheet 1 Filed Aug. 21, 1926 00 000 000 000 ooon I Feb. 16, 1932. c MILLER 1,845,619

DIVISION SHEET FOR VISIBLE RECORD BINDERS Filed Aug. 21, 1926 2 Sheets-Sheet 2 Qgw wi /1 y Patented Feb. 16, 1932 UNITED. STATES- PATENT, o FicE nmmy c. MILLER, or miwamn,

WISOONSIN; FIRST WISCONSIN TRUST COMPANY,

' OF MILWAUKEE, WISCONSIN, EXECUTOR OF HENRY O. MILLER, DECEASED, AS-

SIGNOR, BY MESNE ASSIGNMENTS,

STATIONEBS IJOOSE LEAF COMPANY, OF

MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN DIV 1810K SHEET RECORD BINDEBS Application nee August 21, me. Serial No. 130,709.

This invention relates to loose leaf binders and is particularly directedto division sheets for visible record binders...

- the necessary In loose leaf binders, such for instance as those used for ledgers, it is the usual practice to provide stepped sheets with one sheet overlapping the next sheet so as to provide for a multitude of visible records. This scheme has the obvious advantage stated above, but

has the disadvantage as heretoforepractised,

in that the central portion of the composite sheet bulges out, due to the fact that there are more thicknesses of the overlappin sheets at this point than at other points. consequence is that the upper and lower edges of the composite sheets curve downwardly, while the central portion bulges upwardly. This action is cumulative when several sets of sheets are employed so that the index sheets or division sheets are very much bowed with consequence of binding in turning the sheets and also inability to afford a flat writing surface.

This invention is desi ned to overcome the defects noted above, an objects of-such invention are to provide a novel form of division sheet or index sheet which is so constructed that it will prevent the curving due to the increased central thickness of the composite sheets or overlapping sheets, and which will facilitate turning of the sheets and avoid binding.

Further objects are to provide a novel form ofindex or division sheet, in which the marginal edges are reinforced to not only strengthen the sheet and reinforce the end holes, but also to afford space for maintaining the parallelism of successive sheets so that a flat writing surface is afiorded and the curving, as stated above, is avoided.

An embodiment of the invention is shown in the accompanying drawings, in which:

Figure 1 is a view of a inder laid out flat showing the stepped sheets with parts broken away and showing the division or index sheets.

Figure 2 is a sectional view on the line 2-2 of Figure 1.

Figure 3 is a sectional view somewhat diagrammatic through the new form of sheet.

Figure 4, it

' in considerable Figure .4 is a corresponding view through the old form of sheet. Referring to the drawings, particularly Figure 1, it will be seen that a loose leaf binder 1 has been shown asprovided with impaling prongs or rivets 2 adapted to enter apertures of the successlve stepped sheets 3,

as indicated. The division sheets or index sheets, are indicated by the reference character 4 and it is to be noted that these sheets are provided with reinforcing spacers 5 folded about their upper and lower marginal ed es, as more clearly shown in Figures 2 an 3. sheets'and the end holes, as is apparent from Figure 1, but also serve, as shown in Figure 3, to maintain the flat condition of successive division or index sheets. These sheets will hereinafter be referred to as division sheets to avoid repetition, although it is not intended in a limiting sense.

Referring to Figure 3, it will be seen that the spacers or reinforcing strips 5 rest one upon the other and make up the deficiency in thickness of the stepped sheets at the edges of the successive layers so that the division sheets will lie flat irrespective of the thicker portipn atthe center of the stepped sheets.

Referring to the old form, as shown in "will be seen that the successive division sheets are more and more bowed, due to the piling up at the center of the stepped sheets Obviously this produces binding and anunwieldy construction making it diflicult to turn the sheets and also presenting a curved surface for writing which obviously is highly undesirable.

This invention therefore avoids the defects .incident to the use of. the stepped sheets in or otherbinders, and instead insuresv ledgers, a flat writing surface and avoids curving and binding of successive groups of sheets.

Further it will be seen that the device may be very cheaply constructed and may be used with greater facility than the division sheets heretofore known. i

Although the invention has been described detail, such description is intended as illustrative rather than limiting. as the invention may be variously embodied These spacers not only reinforce the and as the scope of such determined as claimed.

I claim 1. In a loose leaf binder adapted to receive invention. is to 'be record sheets provided with binder prong receiving openings in then inner side edges and. having edges overlapped whereby the sheet surfaces are uneven, a plurality'ofdivision sheets arranged in superposed relation and segregating the record sheets in groups and having binder prong receiving openings in their inner side edges adapted to register with the binder prong receiving openings of the record sheets, and a flexible narrow elongated strip permanently secured along each top and bottom edge of each division sheet, whereby, when the division sheets are arranged in superposed relation, the strips of adjacent edges will be positioned in ap roximately vertical alignment to offset t e increase in the overall thickness of the record sheets where their edges overlap.

2. In aloose leaf binder, a plurality of division sheets arranged in superposed relation and having binder prong receiving openings in their inner side edges, binding strips secured along each top and bottom edge of each division sheet with their inner ends terminating adjacent the inner side edges of the division sheets and having openings therein registering with the endmost prong-receiving openings of the division sheets to provide a reinforcement therefor, said binding strips splzlrcing adjacent division sheets from each at er. 1

3. A loose leaf, comprising a sheet of paper perforated along one marginal edge, and a strip of flexible relatively stron material secured to an adjacent marginal e go of said sheet, one end of the stri terminating near the perforated edge of t 0 sheet and being perforated in correspondence with one of the perforations in the sheet to receive a staple of a loose leaf ledger or the like.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsm.

HENRY o. MILLER. 

